Voltaic Construct + Ashnod's Transmogrant + Gumato

Voltaic Construct

Ashnod's Transmogrant

Gumato

How it works

1. Cause Gumato to become an artifact using Ashnod's Transmogrant.
2. Activate Gumato by tapping it, adding
3. Activate Voltaic Construct by paying 2, untapping Gumato.
4. Repeat from step 2.

This clever loop transforms Gumato into an artifact creature with the help of Ashnod's Transmogrant, turning its tap ability into a profitable three-mana investment. By funneling two of that generated green mana into Voltaic Construct, you can continually untap Gumato to repeat the process. Because Voltaic Construct's untap ability targets *any* artifact creature, this engine neatly generates infinite green mana to fuel the rest of your strategy.